On sloping sites, where should setbacks be measured from?

Setbacks on sloping sites must consider both the edge of the absorption field and the toe of the mound because they play significant roles in ensuring proper drainage and preventing contamination of water sources. By measuring setbacks from the edge of the absorption field, you ensure that waste disposal systems are adequately distanced from property lines, wells, and other sensitive areas.

Simultaneously, taking the toe of the mound into consideration allows for effective management of surface water runoff, reducing the risk of saturation and potential failure of the system. This dual measurement provides a comprehensive approach to site layout and ensures compliance with health and environmental regulations.

In contrast, focusing solely on just the edge of the absorption field, the base of the mound, or the peak of the slope would not offer the same level of protection and could potentially lead to oversights concerning drainage patterns and the overall integrity of the mound soil absorption system.